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CHECKMASTER® Check Valves - Four-Bolt
CHECKMASTER® Check Valves
Features:
Design Pressure (DP) / Maximum abnormal pressure (MAP): 700 psig, 48 bar
Continuous operating temperature (COT): -40°F/300°F, -40°C/149°C
Contact factory or visit website for compatibility with CFC, HCFC, HFC and HFO refrigerants and oils
UL/cUL Recognized, Conforms to Pressure Equipment Directive 2014/68/EU
100% tested
Design features easy removal and reassembly of internal components
Forged brass body exceeds the most stringent quality standards in the industry
Horizontal or vertical installation (not to be installed with bonnet facing down)
"Y" type design provides minimal pressure drop and increased flow capacity
Non-asbestos gasket material ensures seal integrity, while a heatstabilized PTFE seat provides seal across wide temperature ranges.
Back pressure shutoff at low pressure differentials
Item # |
Connection Size |
Pressure to Open |
Rec Bolt Torques |
Weight |
---|---|---|---|---|
B 34235 | Connection Size N/A 7/8 in | Pressure to Open N/A < 1 bar< 0.07 psi | Rec Bolt Torques N/A 8 to 15 ft·lb11 to 20 N·m | Weight N/A 1.08 kg2.39 lb |
B 34236 | Connection Size N/A 1 1/8 in | Pressure to Open N/A < 1 bar< 0.07 psi | Rec Bolt Torques N/A 8 to 15 ft·lb11 to 20 N·m | Weight N/A 1.04 kg2.29 lb |
B 34237 | Connection Size N/A 1 3/8 in | Pressure to Open N/A < 1 bar< 0.07 psi | Rec Bolt Torques N/A 10 to 20 ft·lb14 to 27 N·m | Weight N/A 2.33 kg5.14 lb |
B 34238 | Connection Size N/A 1 5/8 in | Pressure to Open N/A < 1 bar< 0.07 psi | Rec Bolt Torques N/A 10 to 20 ft·lb14 to 27 N·m | Weight N/A 2.36 kg5.20 lb |
B 34239 | Connection Size N/A 2 1/8 in | Pressure to Open N/A < 1 bar< 0.07 psi | Rec Bolt Torques N/A 10 to 20 ft·lb14 to 27 N·m | Weight N/A 5.55 kg12.23 lb |
B 34240 | Connection Size N/A 2 5/8 in | Pressure to Open N/A < 1 bar< 0.07 psi | Rec Bolt Torques N/A 15 to 25 ft·lb20 to 34 N·m | Weight N/A 12.55 kg27.67 lb |
B 34241 | Connection Size N/A 3 1/8 in | Pressure to Open N/A < 1 bar< 0.07 psi | Rec Bolt Torques N/A 15 to 25 ft·lb20 to 34 N·m | Weight N/A 12.16 kg26.80 lb |